Exhaust device of vacuum furnace

Abstract

The utility model discloses an exhaust device of a vacuum furnace, which relates to the technical field of vacuum furnaces and comprises a bottom plate, a cushion block is fixedly connected to the right of the top end of the bottom plate, a vacuum furnace is fixedly connected to the top end of the cushion block, a supporting leg is fixedly connected to the left of the top end of the bottom plate, and a condenser is fixedly connected to the top end of the supporting leg. The left portion of the top end of the bottom plate is fixedly connected with a vacuum pump, the input end of the vacuum pump is fixedly connected with the left end of a condenser, and the left end of the vacuum furnace is fixedly connected with a cleaning mechanism. According to the exhaust device of the vacuum furnace, by starting the first motor, the first motor drives the rotating rod to rotate, the rotating rod synchronously drives the driving bevel gear to rotate, so that the driving bevel gear is meshed with the driven bevel gear, the driven bevel gear drives the rotating block to rotate, the rotating block drives the cleaning rod to synchronously rotate, and the cleaning rod cleans the filter screen; impurities attached to the filter screen are scraped off, and the fallen impurities enter the dust discharging pipe, so that the cleaning effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum furnaces, in particular to an exhaust device for a vacuum furnace. Background Art

[0002] A vacuum furnace is a furnace that uses a vacuum system to discharge some of the materials in the furnace cavity, making the pressure in the furnace cavity less than a standard atmospheric pressure, thereby achieving a vacuum state in the furnace cavity.

[0003] For example, Chinese patent document CN213090502U discloses an exhaust device for a vacuum furnace, which specifically relates to the technical field of vacuum furnaces. The utility model includes a vacuum furnace, a condenser and a vacuum pump. A connecting pipe is provided between the condenser and the vacuum furnace. A filter screen is provided in the connecting pipe. A filter screen frame is provided at the edge of the filter screen, and the edge of the filter screen frame is connected to the inner wall of the connecting pipe; a slag discharge port is provided on the connecting pipe, a sealing cover is provided on the slag discharge port, and the slag discharge port is provided on the side of the filter screen; a first brush and a second brush are provided on both sides of the filter screen, respectively, and the bristles of the first brush and the second brush are slidably connected to the filter screen; a pull rod is provided on the first brush and the second brush, and a first through hole matching the pull rod is provided on the side wall of the connecting pipe, and the hole wall of the first through hole is slidably connected to the pull rod, and a mounting plate is provided on the vacuum furnace, and a cylinder is provided between the mounting plate and the pull rod. The exhaust device for a vacuum furnace proposed by the utility model can facilitate the cleaning of impurities and prevent large particles of impurities from entering the condenser and the vacuum pump.

[0004] The existing technology has the following problems:

[0005] When the vacuum furnace exhaust device of the prior art cleans the filter, since it uses upper and lower flat brushes, the brush plate cannot clean the filter properly, which reduces the practicality of the device. At the same time, the prior art cannot replace the filter, which reduces the practicality of the device. Utility Model Content

[0006] The utility model provides an exhaust device for a vacuum furnace to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A vacuum furnace exhaust device comprises a base plate, a cushion block is fixedly connected to the right portion of the top of the base plate, the top of the cushion block is fixedly connected to the vacuum furnace, a supporting leg is fixedly connected to the left portion of the top of the base plate, a condenser is fixedly connected to the top of the supporting leg, a vacuum pump is fixedly connected to the left portion of the top of the base plate, an input end of the vacuum pump is fixedly connected to the left end of the condenser, a cleaning mechanism is fixedly connected to the left end of the vacuum furnace, a filtering mechanism is fixedly connected to the right end of the condenser, the cleaning mechanism comprises a connecting frame, a connecting pipe 1 is fixedly connected to the right end of the connecting frame, and the right end of the connecting pipe 1 is fixedly connected to the bottom of the left end of the vacuum furnace, and the filtering mechanism comprises a fixing frame, a connecting pipe 2 is fixedly connected to the left end of the fixing frame, and the left end of the connecting pipe 2 is fixedly connected to the right end of the condenser.

[0009] Preferably: a dust exhaust pipe is fixedly connected to the bottom of the connecting frame, a motor 1 is fixedly connected to the left portion of the top of the connecting frame, a rotating rod is fixedly connected to the output end of the motor 1, a sealing ring is fixedly connected to the top of the rotating rod, and the outer wall of the sealing ring is rotatably connected to the inner wall of the connecting frame.

[0010] Preferably: the bottom end of the rotating rod is fixedly connected with an active bevel gear, the left part of the active bevel gear is meshed with a driven bevel gear, the axis of the driven bevel gear is fixedly connected with a rotating block, the outer wall of the rotating block is rotatably connected with a connecting plate, the top of the connecting plate is fixedly connected to the top of the inner cavity of the connecting frame, the left end of the rotating block is fixedly connected with a protrusion, and the outer wall of the rotating block is fixedly connected with a cleaning rod.

[0011] Preferably, a sealing plate is fixedly connected to the left end of the connecting frame, the sealing plate has a rectangular ring shape, and the outer wall of the sealing plate is plugged into the inner wall of the fixing frame.

[0012] Preferably: the inner wall of the fixed frame is fixedly connected with four fixed blocks in a circular array, the right end of the fixed block is fixedly connected with a positioning block, the outer wall of the positioning block is plugged with a filter, the outer wall of the filter is plugged with the inner wall of the fixed frame, and the right end of the filter is rotatably connected with the outer wall of the protrusion.

[0013] Preferably: the outer wall of the fixing frame is fixedly connected with a spring, the top end of the spring is fixedly connected with a mounting plate, the bottom end of the mounting plate is fixedly connected with a limiting block, and the outer wall of the limiting block is plugged into the inner wall of the fixing frame and the sealing plate.

[0014] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0015] 1. The utility model provides an exhaust device for a vacuum furnace. By starting a motor, the motor drives a rotating rod to rotate, and the rotating rod synchronously drives the active bevel gear to rotate, so that the active bevel gear and the driven bevel gear are meshed, and the driven bevel gear drives the rotating block to rotate, and the rotating block drives the cleaning rod to rotate synchronously, so that the cleaning rod cleans the filter screen, scrapes off the impurities attached to the filter screen, and the fallen impurities enter the dust exhaust pipe, which has a cleaning effect.

[0016] 2. The utility model provides an exhaust device for a vacuum furnace, which drives the spring to extend by pulling the mounting plate, and drives the limit block to move upward at the same time, so that the outer wall of the limit block is no longer plugged into the inner wall of the sealing plate, thereby canceling the limit on the sealing plate, and then the connecting frame and the fixing frame can be pulled in opposite directions, so that the outer wall of the sealing plate is no longer plugged into the inner wall of the fixing frame, and the outer wall of the protrusion is no longer in contact with the inner wall of the filter, and then the filter can be removed, so that the outer wall of the filter is no longer plugged into the inner wall of the positioning block, and then the filter can be replaced, which has the effect of facilitating replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the main view of the utility model;

[0018] Figure 2 It is a schematic diagram of the cutaway structure of the main view of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the connection between the connection frame and the fixed frame of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the cleaning mechanism of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the filtering mechanism of the utility model.

[0022] In the figure: 1. bottom plate; 11. cushion block; 12. vacuum furnace; 13. support leg; 14. condenser; 15. vacuum pump; 2. cleaning mechanism; 21. connecting frame; 211. connecting plate; 22. connecting pipe 1; 23. dust exhaust pipe; 24. motor 1; 25. rotating rod; 26. sealing ring; 27. active bevel gear; 271. driven bevel gear; 272. rotating block; 273. protrusion; 28. cleaning rod; 29. ​​sealing plate; 3. filtering mechanism; 31. fixing frame; 32. connecting pipe 2; 33. fixing block; 34. positioning block; 35. filter screen; 36. spring; 37. mounting plate; 38. limit block. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-Figure 5 As shown, an exhaust device for a vacuum furnace comprises a base plate 1, a cushion block 11 is fixedly connected to the right portion of the top of the base plate 1, a vacuum furnace 12 is fixedly connected to the top of the cushion block 11, a support leg 13 is fixedly connected to the left portion of the top of the base plate 1, a condenser 14 is fixedly connected to the top of the support leg 13, a vacuum pump 15 is fixedly connected to the left portion of the top of the base plate 1, an input end of the vacuum pump 15 is fixedly connected to the left end of the condenser 14, a cleaning mechanism 2 is fixedly connected to the left end of the vacuum furnace 12, a filtering mechanism 3 is fixedly connected to the right end of the condenser 14, the cleaning mechanism 2 comprises a connecting frame 21, a connecting pipe 22 is fixedly connected to the right end of the connecting frame 21, a connecting pipe 22 is fixedly connected to the bottom of the left end of the vacuum furnace 12, and the filtering mechanism 3 comprises a fixing frame 31, a connecting pipe 32 is fixedly connected to the left end of the fixing frame 31, a connecting pipe 32 is fixedly connected to the left end of the condenser 14.

[0025] The filter 35 is cleaned by the cleaning mechanism 2 to prevent the filter 35 from being blocked. When the filter 35 needs to be replaced, the cleaning mechanism 2 and the filtering mechanism 3 can be separated so that the filter 35 can be taken out for replacement.

[0026] like Figure 2-Figure 4 As shown, a dust exhaust pipe 23 is fixedly connected to the bottom of the connecting frame 21, a motor 24 is fixedly connected to the left portion of the top of the connecting frame 21, a rotating rod 25 is fixedly connected to the output end of the motor 24, a sealing ring 26 is fixedly connected to the top of the rotating rod 25, and the outer wall of the sealing ring 26 is rotatably connected to the inner wall of the connecting frame 21.

[0027] The motor 1 24 is started, and the motor 1 24 drives the rotating rod 25 to rotate, and the rotating rod 25 drives the sealing ring 26 to rotate synchronously, and the sealing ring 26 ensures the sealing of the connecting frame 21 to avoid air leakage.

[0028] like Figure 2-Figure 4 As shown, the bottom end of the rotating rod 25 is fixedly connected with the active bevel gear 27, the left part of the active bevel gear 27 is meshed with the driven bevel gear 271, the axis of the driven bevel gear 271 is fixedly connected with a rotating block 272, the outer wall of the rotating block 272 is rotatably connected with a connecting plate 211, the top of the connecting plate 211 is fixedly connected to the top of the inner cavity of the connecting frame 21, the left end of the rotating block 272 is fixedly connected with a protrusion 273, the outer wall of the rotating block 272 is fixedly connected with a cleaning rod 28, and the left end of the connecting frame 21 is fixedly connected with a sealing plate 29, the outer shape of the sealing plate 29 is a rectangular ring, and the outer wall of the sealing plate 29 is plugged into the inner wall of the fixed frame 31.

[0029] When the rotating rod 25 rotates, it drives the active bevel gear 27 to rotate, so that the active bevel gear 27 is meshed with the driven bevel gear 271, and the driven bevel gear 271 drives the rotating block 272 to rotate, and the rotating block 272 drives the cleaning rod 28 to rotate synchronously, so that the cleaning rod 28 cleans the filter screen 35, scrapes off the impurities attached to the filter screen 35, and the fallen impurities enter the dust exhaust pipe 23, thereby achieving a cleaning effect.

[0030] like Figure 2 , Figure 3 and Figure 5 As shown, the inner wall of the fixed frame 31 is fixedly connected with four fixed blocks 33 in a circular array, the right end of the fixed block 33 is fixedly connected with a positioning block 34, the outer wall of the positioning block 34 is plugged with a filter screen 35, the outer wall of the filter screen 35 is plugged with the inner wall of the fixed frame 31, the right end of the filter screen 35 is rotatably connected with the outer wall of the protrusion 273, the outer wall of the fixed frame 31 is fixedly connected with a spring 36, the top end of the spring 36 is fixedly connected with a mounting plate 37, the bottom end of the mounting plate 37 is fixedly connected with a limiting block 38, and the outer wall of the limiting block 38 is plugged with the inner wall of the fixed frame 31 and the sealing plate 29.

[0031] By pulling the mounting plate 37, the spring 36 is extended, and the limit block 38 is moved upward at the same time, so that the outer wall of the limit block 38 is no longer plugged into the inner wall of the sealing plate 29, thereby canceling the limit on the sealing plate 29, and then the connecting frame 21 and the fixing frame 31 can be pulled in opposite directions, so that the outer wall of the sealing plate 29 is no longer plugged into the inner wall of the fixing frame 31, and the outer wall of the protrusion 273 is no longer in contact with the inner wall of the filter screen 35, and then the filter screen 35 can be removed, so that the outer wall of the filter screen 35 is no longer plugged into the inner wall of the positioning block 34, and then the filter screen 35 can be replaced, which makes replacement easy.

[0032] The working principle of the utility model is as follows: during operation, the gas in the vacuum furnace 12 is extracted through the vacuum pump 15, and the gas enters the connecting frame 21 through the connecting pipe 1 22, and then the gas is filtered by the filter 35 to filter out impurities in the gas, and then the gas is transported to the condenser 14 through the connecting pipe 2 32, and the gas is cooled by the condenser 14, and the cooled gas is discharged from the output end of the vacuum pump 15. In this process, although the impurities in the gas are isolated and filtered out by the filter 35, some impurities may adhere to the outer wall of the filter 35, affecting the subsequent filtering efficiency of the filter 35. Therefore, the motor 1 24 can be started, and the motor 1 24 can drive the rotating rod 25 to rotate, and the rotating rod 25 can drive the sealing ring 26 to rotate synchronously, and the rotating rod 25 can synchronously drive the active bevel gear 27 to rotate, so that the active bevel gear 27 is meshed with the driven bevel gear 271, and the driven bevel gear 271 drives the rotating block 272 to rotate, and the rotating block 272 drives the cleaning rod 28 to rotate synchronously. The cleaning rod 28 cleans the filter 35 and scrapes off the impurities attached to the filter 35. The impurities dropped into the dust discharge pipe 23 have a cleaning effect. Subsequently, the cover of the dust discharge pipe 23 can be opened to clean out the dust in the dust discharge pipe 23. When the filter 35 needs to be replaced, the mounting plate 37 is pulled to drive the spring 36 to extend and at the same time drive the limit block 38 to move upward so that the outer wall of the limit block 38 is no longer plugged into the inner wall of the sealing plate 29, thereby canceling the limit of the sealing plate 29. Subsequently, the connecting frame 21 and the fixing frame 31 can be pulled in opposite directions so that the outer wall of the sealing plate 29 is no longer plugged into the inner wall of the fixing frame 31, so that the outer wall of the protrusion 273 is no longer in contact with the inner wall of the filter 35. Subsequently, the filter 35 can be removed so that the outer wall of the filter 35 is no longer plugged into the inner wall of the positioning block 34. After that, the filter 35 can be replaced, which has the effect of facilitating replacement, thereby greatly improving the user experience.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An exhaust device for a vacuum furnace, comprising a bottom plate (1), characterized in that: The right portion of the top of the bottom plate (1) is fixedly connected to a cushion block (11), the top of the cushion block (11) is fixedly connected to a vacuum furnace (12), the left portion of the top of the bottom plate (1) is fixedly connected to a support leg (13), the top of the support leg (13) is fixedly connected to a condenser (14), the left portion of the top of the bottom plate (1) is fixedly connected to a vacuum pump (15), the input end of the vacuum pump (15) is fixedly connected to the left end of the condenser (14), and the left end of the vacuum furnace (12) is fixedly connected to a cleaning mechanism (2). The right end of the condenser (14) is fixedly connected to a filtering mechanism (3); the cleaning mechanism (2) comprises a connecting frame (21); the right end of the connecting frame (21) is fixedly connected to a connecting pipe (22); the right end of the connecting pipe (22) is fixedly connected to the bottom of the left end of the vacuum furnace (12); the filtering mechanism (3) comprises a fixing frame (31); the left end of the fixing frame (31) is fixedly connected to a connecting pipe (32); the left end of the connecting pipe (32) is fixedly connected to the right end of the condenser (14).

2. The exhaust device of a vacuum furnace according to claim 1, characterized in that: The bottom of the connection frame (21) is fixedly connected to a dust exhaust pipe (23), the left portion of the top of the connection frame (21) is fixedly connected to a motor 1 (24), the output end of the motor 1 (24) is fixedly connected to a rotating rod (25), the top of the rotating rod (25) is fixedly connected to a sealing ring (26), and the outer wall of the sealing ring (26) is rotatably connected to the inner wall of the connection frame (21).

3. The exhaust device of a vacuum furnace according to claim 2, characterized in that: The bottom end of the rotating rod (25) is fixedly connected to an active bevel gear (27), the left portion of the active bevel gear (27) is meshed with a driven bevel gear (271), a rotating block (272) is fixedly connected to the axis of the driven bevel gear (271), the outer wall of the rotating block (272) is rotatably connected to a connecting plate (211), the top end of the connecting plate (211) is fixedly connected to the top end of the inner cavity of the connecting frame (21), the left end of the rotating block (272) is fixedly connected to a protrusion (273), and the outer wall of the rotating block (272) is fixedly connected to a cleaning rod (28).

4. The exhaust device of a vacuum furnace according to claim 1, characterized in that: A sealing plate (29) is fixedly connected to the left end of the connection frame (21). The sealing plate (29) has a rectangular ring shape, and the outer wall of the sealing plate (29) is plugged into the inner wall of the fixed frame (31).

5. The exhaust device of a vacuum furnace according to claim 1, characterized in that: The inner wall of the fixed frame (31) is fixedly connected to four fixed blocks (33) in a circular array, the right end of the fixed block (33) is fixedly connected to a positioning block (34), the outer wall of the positioning block (34) is plugged with a filter screen (35), the outer wall of the filter screen (35) is plugged with the inner wall of the fixed frame (31), and the right end of the filter screen (35) is rotatably connected to the outer wall of the protrusion (273).

6. The exhaust device of a vacuum furnace according to claim 5, characterized in that: The outer wall of the fixed frame (31) is fixedly connected to a spring (36), the top end of the spring (36) is fixedly connected to a mounting plate (37), the bottom end of the mounting plate (37) is fixedly connected to a limiting block (38), and the outer wall of the limiting block (38) is plugged into the inner wall of the fixed frame (31) and the sealing plate (29).

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